I'm trying to sort arrays within an array. For eg. say

@array = (['CCI003', '1', 'M'], 
          ['CCI002', '1', 'N'],
          ['CCI001', '1', 'U'],
          ['CCI002', '2', 'N'])
[download]

then after sorting the array would look like

(['CCI001', '1', 'U'], 
 ['CCI002', '1', 'N'], 
 ['CCI002', '2', 'N'], 
 ['CCI003', '1', 'M'])
[download]

The sorting being done on the FIRST element within each sub-array. Here is my test code:

#!/usr/perl5/bin 

use strict;
my @array;
my $intElements;
my @prefix1;
my @prefix2;
my @prefix3;
my @prefix4;
my @sorted;

@prefix1 = ('CCI003', '1', 'M');
@prefix2 = ('CCI002', '1', 'N');
@prefix3 = ('CCI001', '1', 'U');
@prefix4 = ('CCI002', '2', 'N');

print STDOUT "Individual arrays: \n";
print STDOUT "@prefix1 \n";
print STDOUT "@prefix2 \n";
print STDOUT "@prefix3 \n";
print STDOUT "@prefix4 \n";

$intElements = push @array, \@prefix1;
$intElements = push @array, \@prefix2;
$intElements = push @array, \@prefix3;
$intElements = push @array, \@prefix4;

print STDOUT "Final Array: \n";

foreach my $rec (@array) {
    print STDOUT "$rec->[0], $rec->[1], $rec->[2] \n";
}

@sorted = sort {$$a[0] <=> $$b[0]} @array;

print "\n";
print STDOUT "Sorted Array:  \n";
foreach my $rec (@sorted) {
    print STDOUT "$rec->[0], $rec->[1], $rec->[2] \n";
}
[download]

It dosen't seem to do anything to the sort order. This is the first time I'm working with array sorting.....so I might be missing something pretty stupid. Any help is appreciated.

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